TITLE:
Apache 2 mod_ssl Denial of Service Vulnerability

SECUNIA ADVISORY ID:
SA18307

VERIFY ADVISORY:
http://secunia.com/advisories/18307/

CRITICAL:
Less critical

IMPACT:
DoS

WHERE:
>From remote

SOFTWARE:
Apache 2.0.x
http://secunia.com/product/73/

DESCRIPTION:
keilh has reported a vulnerability in Apache 2 mod_ssl, which can be
exploited by malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to a NULL pointer dereference error
in mod_ssl. This can be exploited to crash Apache via a specially
crafted request.

Successful exploitation requires that the server is using the
non-default worker MPM, is configured with a SSL virtual host with
access control, and using a custom 400 error document.

SOLUTION:
The vulnerability has been fixed in the CVS repositories.

PROVIDED AND/OR DISCOVERED BY:
keilh

ORIGINAL ADVISORY:
Apache Bugzilla:
http://issues.apache.org/bugzilla/show_bug.cgi?id=37791

Red Hat Bugzilla:
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=175720

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